KONGL. SV. VET. AKAUKMIKNS II AN1)1,IN<!AR. I5ANI). 22. N:(> 7. 407 



are about tbur times as long as broad, with both margins serrated, and ihc hind jjortion 

 more or less deeply emarginate. 



The tels(ni is triangulär, broader than long, more than halt" as long as the last ural 

 segment, and aboiit a fourth pai^t as long as the last pair of nropoda. 



T 11 e f e 111 a 1 e. 



Pl. XVII, Pig. 24 anrt 2.5; pl. XVIII, fig. 1 and 2. 



The body is scarcely thicker and broader than in the male. The head and pera^on 

 together are quite as long as the pleon and urus together. 



The first pair of a,ntenn<x (Pl. XVII, fig. 25) in the adult feraale are as long as 

 the head and the first two personal segments together. The single peduncular joint is 

 as long as broad. The flagellum consists of a single joint, which is tolerably broad at 

 the base and tapers slowly towards the apex; it is about ten times as long as the ped- 

 uncle, and is sparingl}' set with olfactory hairs along the inner margin. In the young 

 female the single flagellar joint is tbick, short and conical, and is scarcely tAvice as long 

 as the peduncle. 



The second pair are Avanting, only represented by a small tubercle at the lowest 

 end of the front side of the head. 



The mouth- organs are like those in the male, but the mandibles want a palp. 



The perceon. The first segment is longer than the second; the seventh is furnished 

 mth spine-like processes as in the male. 



The ovitectrices are very tliin, broad, and longer than the branchial vesicles. 



The perawpoda agree in every respect with those in the male. 



The 27leo72 is a little longer than the whole perteon; the segments are armed as in 

 the male. 



The urus is as long as the last pleonal segment; the first ural segment is fully as 

 long as the last coalesced, which is considerably broader than long. 



The tiropoda are like those in the male. 



